Yes, Delta doesn't keep cores like Cobb or TWE, so you have to send your cams in, or buy a used set of cams (that's what I did, the seller offered to send it straight to delta so I save some on the shipping) and sell yours later when you install it. you can check out RS25.com's NA tuning section and NASIOC NA tuning about the delta cams too.
They offer two grind profiles now, one mild and one race (or spicy as Cobb puts them). http://www.deltacam.com/ is the website. You'll need to call them up and talk to them about your engine and stuff so they can recommend to you what profile will suit your needs.
And yeah, regrind just means they change the timing of the cams by grinding down/adding some material on the nubs that open and close the valves. According to their website, they also inspect the cam before and after the grind on a cam-reading machine of some sort (it's like a follower that traces the profile on the cam nub).
Their setups isn't as aggressive as comparable profiles from TWE or Cobb though, but I'm guessing since Delta isn't a Subaru specialist (they seem to do a lot more V8's and the like) they didn't want to push the envelope too much, but I got my SOHC cams reground for $161 for the mild profile, with the return shipping included (I had the guy I bought my set from send it straight to delta)
See that link for a quick vid clip and impressions from someone who installed it on his RS.
Typically for the mild cams it's around 12-15hp+ gain by itself. The typical route is add the supporting bolt-ons, exhaust, intake, equal-length header, and you're looking at around an honest 200bhp from 165bhp.
Add highflow heads to that ($$) and you're making a reliable 220bhp out of your NA car.
Thanks and a lot of good info there. A few things have changed since the writing of this though. We have several grinds on the shelf and ready to go. We still prefer that you call us about your build so we can get you the right grind that suits you best.
We also now do Subaru heads. Which include, new stock sized valves, oversized valves, porting and polishing, complete packages for all you performance needs.
Unfortunately both sites are being reconstructed. We are trying to get more user friendly pages that are fully functional. You input your choices and the site will give you a quote right at that moment.
performance info and more for noobs
in Older Legacy Performance
Posted
Thanks and a lot of good info there. A few things have changed since the writing of this though. We have several grinds on the shelf and ready to go. We still prefer that you call us about your build so we can get you the right grind that suits you best.
We also now do Subaru heads. Which include, new stock sized valves, oversized valves, porting and polishing, complete packages for all you performance needs.
www.deltacam.com
www.customimportheads.us
Unfortunately both sites are being reconstructed. We are trying to get more user friendly pages that are fully functional. You input your choices and the site will give you a quote right at that moment.
Feel free to call us @ 1-800-562-5500
Ken